In the spirit of a famous rhetorical question, this program explores the world of scientific measurement at the molecular and atomic level. Host Alan Davies tries to establish the length of a piece of household string—but what appears to be a simple task soon turns into a mind-bending voyage of discovery. After discussing the matter with leading mathematician Marcus du Sautoy, Davies learns that his segment of string may in fact be infinitely long. And when MIT professor of quantum physics Seth Lloyd gets involved, events take an even stranger turn. Not only do objects appear in many places at once, but reality itself becomes a nebulous distortion—in which the humble act of measuring string could, in theory, pull the world into a black hole.

Films Media Group

Measurement, Physical measurement

Horizon (BBC program)

Liddell, Rob (Producer), Liddell, Rob (Director), van der Pool, James (series producer), O'Donnell, Marie (Production personnel), Cohen, Andrew (Editor), Davies, Alan (Narrator), Films for the Humanities & Sciences (Firm) (Distributor), BBC production (Producer)

00:51:21 (HH:MM:SS)

English

Higher education

Name	Films Media Group (Firm)
Role	Publisher
Telephone	800-257-5126
Address	200 Metro Blvd. Suite 124 Hamilton, NJ 08619
Email	[email protected]

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